Client application - connect to server method

client_connect_to_server.py

# Note: several lines of codes omitted.
# For previous codes see: https://gist.github.com/effiongcharles/de4b7622591b5f414ab814733fe6ff02.js

client = None
HOST_ADDR = "0.0.0.0"
HOST_PORT = 8080

def connect_to_server(name):
    global client, HOST_PORT, HOST_ADDR
    try:
        client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        client.connect((HOST_ADDR, HOST_PORT))
        client.send(name) # Send name to server after connecting

        entName.config(state=tk.DISABLED)
        btnConnect.config(state=tk.DISABLED)
        tkMessage.config(state=tk.NORMAL)

        # start a thread to keep receiving message from server
        # do not block the main thread :)
        threading._start_new_thread(receive_message_from_server, (client, "m"))
    except Exception as e:
        tk.messagebox.showerror(title="ERROR!!!", message="Cannot connect to host: " + HOST_ADDR + " on port: " + str(HOST_PORT) + " Server may be Unavailable. Try again later")